Q: What are the prime factors of the number 308,433,816?

 A: 2, 3, 41, 163, 641

Why are those the prime factors of the number 308,433,816?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 308,433,816

308,433,816
Factor Arrows
2154,216,908
Factor Arrows
277,108,454
Factor Arrows
238,554,227
Factor Arrows
312,851,409
Factor Arrows
34,283,803
Factor Arrows
41104,483
Factor Arrows
163641

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 41, 163, 641

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 41 x 163 x 641 = 308,433,816

This can also be written as 23 x 32 x 411 x 1631 x 6411 = 308,433,816

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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